VULNERABILITY INTELLIGENCE

CVE-2021-32843

CVSS score6.2 MEDIUM
EPSS probability0.23%
CISA KEVNot currently listed
Published2023-02-17
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior of HyperKit, `virtio.c` has is a call to `vc_cfgread` that does not check for null which when called makes the host crash. This issue may lead to a guest crashing the host causing a denial of service. This issue is fixed in commit df0e46c7dbfd81a957d85e449ba41b52f6f7beb4.

Weakness classification

  • security-advisories@github.com: CWE-476
  • nvd@nist.gov: CWE-476

Primary references